When I was twenty-seven years old, I was a mining-broker's clerk in San Francisco, and an expert in all the details of stock traffic.

我二十七岁的时候，在旧金山的一个矿业经纪公司当职员，精通股票交易的所有细节。

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Several original Leviant paintings illustrating this effect hang in the San Francisco Exploratorium, including its very first version (known as the Traffic Illusion).

旧金山探索馆中悬挂着几幅表现这一效应的勒维安特原版画作，包括这幅图的最初版本(即著名的Traffic Illusion“交通错觉”)。

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The responses have been incredibly engaging and entertaining ranging from musical performances to yoga poses to wine to an analysis of urban traffic patterns in San Francisco.

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For example, the Administrator of the National Highway Traffic Safety Administration (NHTSA), David Strickland, convened a roundtable meeting with the Chinatown Community Development Center in San Francisco to discuss traffic and pedestrian safety issues.

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As anyone in the San Francisco Bay Area can tell you, the worse the traffic is, the better the economy usually is.

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